S
M
T
W
T
F
S
30
106°
81°
31
86°
73°
1
99°
76°
2
100°
81°
3
99°
81°
4
99°
82°
5
100°
82°
6
102°
81°
7
106°
83°
8
108°
86°
9
107°
85°
10
105°
84°
11
103°
81°
12
100°
79°
13
102°
77°
14
101°
76°
15
99°
74°
16
100°
76°
17
103°
77°
18
102°
76°
19
100°
75°
20
99°
69°
21
93°
63°
22
94°
63°
23
96°
66°
24
96°
65°
25
97°
66°
26
100°
70°
27
98°
66°
28
90°
61°
29
91°
63°
30
95°
59°
1
90°
59°
2
92°
62°
3
93°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sun Lakes
Sun Lakes's September 2026 forecast shows daily high temperatures ranging from 90° to 108°, with overnight lows between 59° and 86°. The average high for September is 99° with an average low of 71°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Sun Lakes. See also: October | November | December.
